METHOD FOR ADAPTIVELY TRANSMITTING FEC PARITY DATA USING CROSS-LAYER OPTIMIZATION

摘要

Provided is a method for transmitting multi-media in a heterogeneous network transmission environment or a hybrid transmission environment of broadcasting and broadband IP networks, in which information for PHY channel state information is transmitted so that same is comprised in the header of a forward error correction (FEC) parity unit, and on the basis of the channel state information, when the channel state is good, the amount of parity data is reduced so as to raise the data transmission rate, and when the channel state is poor, the amount of parity data is increased so that data errors are corrected at a high rate, thus reducing the number of data re-transmissions, and thereby raising the data transmission rate.

主权项

1. A method for transmitting multimedia through adaptively controlling an FEC parity using cross-layer optimization, the method comprising:
deciding the size of an FEC parity data set by using channel state information received from a lower layer.